(3) No evidence was identified from the petitioners or from other resources that
would establish that the class was exposed to radiation during a discrete incident,
such as a nuclear criticality incident, as defined under 42 C.F.R. § 83.13(c)(3)(i).

(4) The Board concurred with the finding of NIOSH that the health of the class may
have been endangered and further concurred with NIOSH in this respect by defining

the class according to the 250 work day employment requirement specified under 42
C.E.R. § 83.13(c)(3)(ii).

V. — Effect and Effective Date of Designation

The Secretary submits this report on designation of one additional class to the SEC
for review by Congress, pursuant to 42 U.S.C. §§ 7384/(14)(C)(ii) and
7384q(c)(2)(A), as amended by the Ronald W. Reagan National Defense
Authorization Act for Fiscal Year 2005, Pub. L. No. 108-375 (codified as amended in
scattered sections of 42 U.S.C.). Pursuant to 42 U.S.C. § 7384/(14)(C)(ii), as
amended by the Ronald W. Reagan National Defense Authorization Act for Fiscal
Year 2005, Pub. L. No. 108-375 (codified as amended in scattered sections of 42
U.S.C.), the designation in this report will become effective 30 days after the date of
this report’s submission to Congress, “unless Congress otherwise provides.”

VI. Administrative Review of Designation

The health endangerment determination of the designation provided in this report
may be subject to an administrative review within HHS, pursuant to 42 C.F.R. §
83.16(b). On the basis of such a review, if the Secretary decides to expand the class
of employees covered by this designation, the Secretary would transmit a
supplementary report to Congress providing the expanded employee class definition
and the criterion and findings on which the decision was based.

HHS Special Exposure Cohort Designation:
Linde Ceramics Plant


HHS Designation of Additional Members of the
Special Exposure Cohort

under the
Energy Employees Occupational Illness Compensation Program Act

Designating a Class of Employees from

Linde Ceramics Plant
Niagara Falls, NY

HHS Special Exposure Cohort Designation:
Linde Ceramics Plant



I. Designation

I, Michael O. Leavitt, Secretary of Health and Human Services (“the Secretary”),
designate the class of employees defined in Section II of this report for addition to the
Special Exposure Cohort (SEC), as authorized under the Energy Employees
Occupational IlIness Compensation Program Act of 2000 (EEOICPA), 42 U.S.C. §
7384q.

DEC ~ 8 2005 DIYKLO, Koop

Date Michael O. Leavitt

II. Employee Class Definition

Atomic Weapons Employees who worked at the Linde Ceramics Plant from October
1, 1942 through October 31, 1947 and who were employed for a number of work
days aggregating at least 250 work days, either solely under this employment or in
combination with work days within the parameters (excluding aggregate work day
requirements) established for other classes of employees included in the SEC.

Il. Designation Criteria and Recommendations

Pursuant to 42 U.S.C. § 73844, for the class defined in Section II of this report, the
Secretary has determined, and the Advisory Board on Radiation and Worker Health
(“the Board”) has recommended, that
(1) it is not feasible to estimate with sufficient accuracy the radiation dose that the
class received, and
(2) there is a reasonable likelihood that such radiation dose may have endangered
the health of members of the class.

The SEC final rule, 42 C.F.R. § 83.13(c)(1), states that it is feasible to estimate the
radiatiorr dose that the class received with sufficient accuracy under two situations.
First, the rule states that radiation doses can be estimated with sufficient accuracy if it
is established there is access to sufficient information to estimate the maximum
radiation dose for every type of cancer for which radiation doses are reconstructed
that could have been incurred under plausible circumstances by any member of the
class. Alternatively, radiation doses can be estimated with sufficient accuracy if it is
established that there is access to sufficient information to estimate the radiation
doses of members of the class more precisely than a maximum dose estimate. 42
CFR. § 83.3(c)(1)().

The Board, pursuant to 42 U.S.C. § 7384q, advised the Secretary to designate the
class as an addition to the SEC in a letter dated November 8, 2005 and received by
the Secretary on November 9, 2005.

HHS Special Exposure Cohort Designation:
Linde Ceramics Plant


IV. Designation Findings

Feasibility of Estimating Radiation Doses with Sufficient Accuracy

The Secretary established the feasibility determination for the class of employees
covered by this report upon the findings summarized below.

(1) The site produced uranium materials during the periods 1942-1946 and 1947-
1949. Available descriptions of work activities indicate the potential for very
high airborne concentrations of radioactive materials.

(2) Radiation surveys and film badge data provide means for reconstructing external
doses and it is possible to estimate the exposure that resulted from occupational
medical x-rays.

(3) Data from October 1942 to October 1947 is insufficient to support reconstruction
of internal exposures and resulting doses. Urinalysis for internal dosimetry was
implemented in November 1947. The air monitoring program, including task
analysis with air concentrations measured in breathing zone, general area, and
process arca, began in’ 1947.

(4) As governed by 42 C.F.R. § 83.13(c)(1), it is determined that there is insufficient
information either to estimate the maximum radiation dose for every type of
cancer for whiclrradiation doses are reconstructed that could have been incurred
under plausible circumstances by any member of the class, or to estimate the
radiation doses of members ofthe class more precisely than a maximum dose
estimate.

Health Endangerment

The Secretary established the health endangerment determination for the class of
employees covered by this report upon the findings summarized below.

(1) As governed by 42 C.F.R. § 83.13(c)(3), NIOSH established that there is a
reasonable likelihood that such radiation doses may have endangered the health of
members of the’class.* Pursuant to 42 C.F.R. § 83.13(c)(3)(ii), NIOSH specified a
minimum duration of employment to satisfy this health endangerment criterion as
“having been employed for a number of work days aggregating at least 250 work
days within the parameters established for this class or in combination with work
days within the parameters (excluding aggregate work day requirements)
established for one or more other classes of employees in the Cohort.”

(2) The evidence indicates that some workers in the class may have accumulated
substantial intakes of radionuclides.

HHS Special Exposure Cohort Designation:
Linde Ceramics Plant